Contact Us Host an Event Volunteer Join

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
See a list of all Smarty Plants questions

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Friday - July 25, 2014

From: Nederland, TX
Region: Southwest
Topic: General Botany
Title: The Designation of Annual and Perennial Plants
Answered by: Joe Marcus

QUESTION:

Sometimes when researching a plant I will find it listed as both annual and perennial. I understand that some plants will be perennial in a warm climate and die in a colder zone, but it is still a perennial that is grown out of it's preferred environment.

ANSWER:

Plants that are perennials in warm climates but are not hardy in colder climates are there considered "tender perennials", but are sometimes termed "annuals" in those areas even though they are not technically annuals.  Likewise, some cool-climate annual plants will survive more than one year in warm areas.  Finally, some plants may complete their life cycle in one growing season or they may require more than one growing season to do so.  Those species can be considered both annual and perennial because they may behave either way.  As it turns out, plants are incredibly complicated organisms.

 

More General Botany Questions

Trillium phototropism
May 16, 2010 - I'm SURE you haven't had this question before. I live in northern Michigan in a wooded subdivision where we have clouds of wild grandiflorum trilliums growing in the woods on either side of the roa...
view the full question and answer

Does Nolina lindheimeriana have separate male and female plants
June 30, 2013 - RE: NOLINA LINDHEIMERIANA You show several pictures, with flowers & with seed pods. I have one plant that has only flowers and one that has only seed pods. Are they male and female? I don't see ...
view the full question and answer

Science Fair Question
December 12, 2011 - Dear Mr Smarty Plants, I'm working on a project for the science fair and I need to find a plant that can survive in all climates in order for my experiment to work. What plant should I use? I hope ...
view the full question and answer

Starting a sweet potato in water in Duluth MN
April 11, 2011 - I am trying to start a sweet potato plant in water. I noticed 3 days after it's in water, there is white finger like(hairy) areas at the tip of the bottom of the potato and also on the sides. I have...
view the full question and answer

Texas native plants that absorb air-borne pollutants
December 15, 2008 - hello mr. and mrs. smarty, I'm looking for native Texas plants that absorb pollutants and trap air-borne particulates. I found a list (below), but don't think they're native. Could you give me ad...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.